Sole-leveling machine



(No Model.) 3 SheetsSheet 1. A. K. WASHBURN.

SOLE LBVELING MACHINE.

INIVEJJTEIR- iduw Patented Sept. 2,- 1890.

(No Model.) 3 Sheets-Sheet 2.

A. K. WASHBURN.

' SOLE LEVELING MACHINE.

No. 435,882; Patented Sept. 2, 1890.

WITNEESEE I 'INVENTU' Jain (No Model.) 3 Sheets-Sheet 3.

. A. K. WASHBURN.

SOLE LEVELING MACHINE. No. 435,882. Patented Sept. 2, 1890.

WITNESSES INVENTU NITED STATES PATENT OFFICE.

ALBION K. IVASHBURN, OF BRIDGEYVATER, MA$SACHUSETTS.

SOLE-LEVELING MACHINE.

. SPECIFICATION forming part of Letters Patent No. 435,882, datedSeptember 2, 1890.

Application filed January 30, 1890. Serial No. 388,680. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBION K. ASHBURN, of Bridgewater, in the county ofPlymouth and State of Massachusetts, have invented certain new anduseful Improvements in Sole Leveling Machines, of which the following,taken in connection with the accompanying drawings, is a specification.

The object of my invention is to so improve the construction of boot andshoe sole leveling machines that the work can be done much better andwith less labor than with any machine now in use. This object I attainby the mechanism shown in the accompanying drawings, in which Figure 1is a side elevation of my invention. Fig. 2 shows in elevation a part ofthe jack. Fig. 3 is a plan of my machine. Fig. 4 is a detail in section.Fig. 5 is a front elevation of my machine. Fig. 6 is a view, partly invertical section, showing parts of the jack.

In the drawings, A represents the frame of the machine, upon which, insuitable housings, the main shaftB is mounted. This shaft 13 is drivenby means of the pulley B. An eccentric (indicated by dotted lines at Bin Fig. 1) is hung upon the main shaft B. The eccentric B acting throughan eccentricstrap B and rod 13 gives motion to the bent lever B to whichit is connected by a pivotpin B which is adjustable in the slot B. Thebent lever B is pivoted to a part of the frame of the machine at B Thefunction of the bent lever B is to give a forth and back motion to theleveling-roller B, to which it is connected by means of the rod 13 andforked piece 13 (See Fig. 3.)

To admit of the roller B having a rocking motion as well as a forth andback and an up and down one, I have the followingdescribed device: E,Figs. 1 and 4, is a short cylinder mounted upon trunnions E, which arejournaled in the standards A. Outside the short oscillating cylinder E,I have a second cylinder 0, which is free to .rotate, although it has nolongitudinal motion in relation to the cylinder C, and has arms 0 Cextending horizontally from it. These arms C O terminate inslideway-pieces O" C, in which the journal boxes of the roller 13 slide.From the above it may be seen that the entire framework in which theroller B is hung is free to be swung up and down and to be turned on itslongitudinal axis, and that the roller itself may, by the action of therod B Fig. 3, be caused to move back and forth. The amount of motiongiven to the roller B is determined by the position of theclamping-pivot 13 in the slot 13 of the bent lever B Fig. 1.

C is a handle, by means of which the position of the roller B may tosome extent be determined by'the operator. The foot-lever D pivoted atD, is connected to the rollerframe by means of the rod D spring-couplingD, rods D D, and cross-bridge C and serves to force the roller B downonto the sole of the boot or shoe being worked upon.

The device by which the shoe is held while subject to the action of themachine consists of a swinging jack, the base of which I have designatedby the letter J. This base is pivoted to the frame of the machine byjournals J, and is connected by a standard J Figs. 1 and 5, (having arack-gear J at its upper end,) to a pinion J made on the end of theshaft \V of the handwheel IV. The shaft \V is indicated by dotted linesin Fig. 5, and is held in place by a standard and quill A A attached tothe frame of the machine, so that by turning the hand-wheel W the jackmay be swung forth and back, as may be desired.

That part of the jack that is used for supporting the heel part of theboot or shoe consists of a standard II, which has pivoted at its top ashort pin-lever. 11*, said pin-lever having a last-pin II of the usualconstruction and arrangement.

The pin-lever is swung forth and back and held in place by thefollowing-described device: H is a link pivoted to the pin-lever at Hand passing downward into the base of the standardH, as shown moreclearly in Fig. 6, the lower end resting upon a spiral or other suitablespring I1 the tendency of the spring H being to force the link H upward,and acting through the pin-lever H to throw the upper end of thelast-pin H backward and release the last. 11 is a lever pivoted to thestandard H at H One end of this lever passes through a slot It made inthe link H, while the other end is connected to a swiveling screw-nut Hby a pivot-bolt H 7 1. This upright has a swiveling screw-nut at Gthrough which a screw-rod G passes. The screw-rod G is connected by aswiveljoint G to the standard H, so that by turn- I ing the hand-Wheel Gthe upright G G may be moved toward or away from the heel-support, andas the guide or guard G", as well as the toe-support, is attached to theupright G G, they must of necessity move also.

The upright G G is made in two parts, as indicated in Figs. 1 and 2, theparts G and G being so made that they can be adjusted one upon the otherand held firmly in place by clamping-bolts b b or by any suitable means.

Near the upper part of the upright G G, I have a bracket-piece T, whichsupports a toe-piece T. This toe-piece T is adjusted by the hand-screw TTo operate my machine, the user places the boot or shoe on the jack inthe usual manner, adjusting the toe-piece T and the guard G so that thework may be done to the best advantage. Now the machine may be set inmotion-that is, the roller B may roll back and forth over the surface ofthe sole to be leveled. The pressure on the sole may be graded by meansof the foot-lever D. By turning the hand-Wheel W the entire jack, takingwith it the boot or shoe, may be so placed that the roller may operateon any desired part of the shoe, or the jack may be brought so farforward that the roller will not touch the sole at all, but traverse onthe guard G Iclaim V, V

1. In a sole-levelingmachine, the combination of the eccentric Beccentric-strap B and rod B, being adj ustably connected to the bentlever B with the bent lever B", rod B and roller 13, substantially asand for the purpose set forth.

2. In a sole-levelingmachine, the combina tion of the roller B with theadjustable guard G and hand-wheel W, said guard being adapted to bethrown over by the handwheel W into such a position as to receive theroller B and support it when desired, substantially as and for thepurpose set forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 24th day of January, A.D. 1890.

ALBIONK. WASHBURN.

Witnesses:

FRANK G. PARKER, MATTHEW M. BLUNT.

